Making Halloween slime is exactly the type of Halloween you are going to want to share with your kids this season because Halloween and slime are the perfect matches! Creepy oozing green go and carved jack O lanterns are perfect for our newest Halloween slime ideas. Whatever Halloween theme you want to give your slime, we will show you how to make slime like a pro using our favorite basic slime recipes, best slime ingredients, and easy tips and tricks to create amazing slime every time.

JACK O LANTERN HALLOWEEN SLIME IDEAS

Jack O lantern Halloween Slime Recipe

The kids will loving carving a jack o lantern and filling it with slime to watch it ooze! Our simple slime recipe is perfect for either a real pumpkin or fake pumpkin carving activity too! We have tried it both ways. This is just one of our many Halloween slime ideas to try!

Slime making is even more fun when you add in creative Halloween themes, and we have quite a few to share. Our Elmers Glue Halloween Slime Recipe is yet another AMAZING slime recipe we can show you how to make.

OUR HOMEMADE BASIC SLIME RECIPES ARE THE SLIME RECIPES YOU NEED!

SLIME SCIENCE AND CHEMISTRY

We always like to include a bit of homemade slime science around here!  Slime is an excellent chemistry demonstration and kids love it too!   Mixtures, substances, polymers, cross-linking, states of matter, elasticity, and viscosity are just a few of the science concepts that can be explored with homemade slime!

What’s slime science all about?  The borate ions in the slime activators (sodium borate, borax powder, or boric acid) mix with the PVA (polyvinyl acetate) glue and forms this cool stretchy substance. This is called cross-linking!

The glue is a polymer and is made up of long, repeating, and identical strands or molecules. These molecules with flow past one another keeping the glue in a liquid state. Until…

You add the borate ions to the mixture,  and it then starts to connect these long strands together. They begin to tangle and mix until the substance is less like the liquid you started with and thicker and rubbery like slime! Slime is a polymer.

Picture the difference between wet spaghetti and leftover spaghetti the next day. As the slime forms, the tangled molecule strands are much like the clump of spaghetti!

Is slime a liquid or solid?

We call it a Non-Newtonian fluid because it’s a little bit of both!  Experiment with making the slime more or less viscous with varying amounts of foam beads. Can you change the density?

Did you know that slime aligns with the Next Generation Science Standards (NGSS)? 

It does and you can use slime making to explore states of matter and its interactions. Find out more below…

GRAB THE HALLOWEEN SLIME CHALLENGE NOW!

EASY HALLOWEEN SLIME IDEAS

We made this jack o lantern Halloween slime idea with clear glue, food coloring, and glitter. However, Elmer’s white glue is super easy to use and also works well for this recipe, but your color will be slightly different!

ELMERS GLUE HALLOWEEN SLIME RECIPE TIPS 

The base for this scented slime uses one of our most basic slime recipes which is clear glue, water, baking soda, and saline solution.

Now if you don’t want to use saline solution, you can absolutely test out one of our other basic recipes using liquid starch or borax powder.

Our easy, “how to make” slime recipes will show you how to master slime in 5 minutes! We have spent years tinkering with our 4 now 5 favorite basic slime recipes to make sure you can make the BEST slime every time!

We believe learning how to make slime shouldn’t be disappointing or frustrating! That’s why we want to take the guesswork out of making slime!

  • Discover the best slime ingredients and get the right slime supplies the first time!
  • Make easy fluffy slime recipes that really work!
  • Achieve awesome fluffy, slimy consistency the kids’ love!

We have the best resources to look through before, during, and after making your Halloween slime! Make sure to go back and read the slime science above too!

YOU WILL NEED:

As I mentioned above, you can use any of our basic slime recipes for our Halloween slime ideas, but we like our basic saline solution slime recipe with the Elmers clear washable school glue. I will link the products we used here with Amazon affiliate links below.

CLICK HERE >>>Look at all our HALLOWEEN Slime Recipes 

  • Pumpkin (real pumpkin or fake craft pumpkin works well)
  • 1/2 cup of Elmer’s Clear Glue
  • 1/2 cup of water
  • 1/2 tsp baking soda
  • Food coloring and glitter as desired
  • 1 tbsp of saline solution (see recommended slime supplies for brands)
  • Basic slime recipe cheat sheet printable (bottom of page)

HOW TO MAKE HALLOWEEN SLIME COME OUT OF A PUMPKIN

You will also want to prep your pumpkin. In the past, we have used small real pumpkins for this activity but this time we tried out a craft pumpkin. Depending on the size of the pumpkin, you may need more or less slime. This activity used three batches of slime in a variety of fun Halloween colors.

Check it out of you want to use a real pumpkin!

The best slime recipe starts with the right slime ingredients. Make sure to follow along with our measurements. Start by adding your clear glue and water to a bowl and grab a mixing utensil. Mix it up and add food coloring and glitter as desired!

BEST SLIME ACTIVATORS

Add in your slime activator (baking soda and saline solution)  to complete the chemical reaction you read about above in the science behind the slime section. If you scrolled past it, go back and read it with your kids!

What does the baking soda do? It adds the firmness the mixture needs so you can pick it up. This ingredient is a great variable to tinker with for a science experiment!

You can also learn more about all our favorite slime activators here. Keep in mind that liquid starch, saline solution, and borax powder are all in the boron family. Neither of these ingredients is truly borax free.

We always recommend kneading your slime well after mixing. Kneading the slime really helps to improve it’s consistency. The trick with saline solution slime is to squirt a few drops of solution onto your hands before picking up the slime.

You can knead the slime in the bowl before you pick it up as well. This slime is ultra stretchy but can be stickier. However, keep in mind that although adding more solution reduces the stickiness, it will create a stiffer slime.

Our slime recipes are so easy to change up with different themes for holidays, seasons, favorite characters, or special occasions. Saline solution is always super stretchy and makes for great sensory play and science with the kids!

SALINE SOLUTION SLIME RECIPE

STEP 1: Add 1/2 cup of Elmers Glue to your bowl (add more glitter if desired).

STEP 2: Mix with a 1/2 cup of water.

STEP 3: Add food coloring and glitter as desired

STEP 4: Stir in 1/2 tsp baking soda

STEP 5: Mix in 1 tbsp saline solution and stir until slime forms and pulls away from sides of bowl. This is exactly how much you will need with the Target Sensitive Eyes brand!

If your slime still feels too sticky, you may need a few more drops of saline solution. As I mentioned above, start by squirting a few drops of the solution onto your hands and kneading your slime longer. You can always add but you can’t take away. Saline solution is preferred over contact solution.

NOTE: We have found that the Elmers Glitter Glue tends to be a bit stickier than their regular clear glue and we prefer our 2 ingredient slime recipe for this glue.

Use our “How To Fix Your Slime” guide if you are having trouble and make sure to watch my live start to finish slime video here.

STORING YOUR SLIME

Slime lasts quite awhile! I get a lot of questions regarding how I store my slime. We use reusable containers in either plastic or glass. Make sure to keep your slime clean and it will last for several weeks. I love the deli-style containers in my recommended slime supplies list here.

If you want to send kids home with a bit of slime from a camp, party, or classroom project, I would suggest packages of reusable containers from the dollar store or grocery store or even Amazon. For large groups, we have used condiment containers as seen here.

Want to have all our basic recipes handy and in one place? Use the buttons just below to download your free slime recipes cheat sheet pages and challenges. We also have an awesome MASTER YOUR SLIME training series going on here.

No more having to print out a WHOLE blog post for just one recipe!

Get our basic slime recipes in an easy to print format so you can knock out the activities!

GRAB THE HALLOWEEN SLIME CHALLENGE NOW!

MORE SLIME MAKING RESOURCES!

Everything you need to know about making slime is below! Did you know we also have fun with science activities too? Click on all the pictures below to learn even more great ideas for slime making.

HOW DO I FIX MY SLIME?

OUR TOP SLIME RECIPE IDEAS YOU NEED TO MAKE!

BASIC SLIME SCIENCE KIDS CAN UNDERSTAND!

WATCH OUR AMAZING SLIME VIDEOS

READER QUESTIONS ANSWERED!

BEST INGREDIENTS FOR MAKING SLIME!

THE AMAZING BENEFITS THAT COME OUT OF SLIME MAKING WITH KIDS!

JACK O LANTERN SLIME IS JUST ONE OF OUR MANY HALLOWEEN SLIME IDEAS!

Check out more cool slime recipes and information by clicking on the photos below!

21+ BEST EVER HOMEMADE SLIMES AROUND!